This wasn't amazing, but it did something nice to my hair. It definitely made it a bit less frizzy, but it wasn't anything crazy and I've tried other products in a similar price range that work better. If this is on sale (which is often is) I'd say try it out if your frizz problem isn't really bad (mine is awful) and it'll probably work great for you!

this is just an average product for me as i felt there are many products ive tried that i would compare the same.i dont find it did a lot of anything it claims but i also did not find it made my hair terrible.so im not sure with this serum exctley what my hair was getting out of it.im recommending only because it did not do anything bad for my hair but personally myself just would not buy again as feel does minimal to my hair.can be worth a shot for some

It is a good serum for a fair price.
I have thin, colored hair so I always need a good serum for my easy to split ends.
I found it efficient and you don't have to pay a lot of money as for the other brands.

I got to try this with a sample of the shampoo and conditioner and I really liked it. It has a great smell and as your running the flat iron thru your hair it brings out the smell even more. I only put a little on my ends and it works really good. It seems to keep them under control for most of the day and they feel nice and soft and smooth!

Great product. Keeps hair soft, silky and shiny. Great pricing and smells great!!!! Feels light and airy on the hair, not thick and heavy. I would highly recommend this product to all the ladies!

I wasn't super impressed with this product. I personally wouldn't buy it with my own money,thankfully I recieved this as a sample. I would not recommend this product.

I have seriously frizzy and thick hair and I found that this serum really helped to soften the hair and also tame the frizz really well. I didn't find that there was any thick residue and it didn't smell that bad either.

Woww un peu plus cher , mais au combien efficace! J'adore et il sent si bon. Mes cheveux sont lisse et extrêmement brillant . Je l utilise seulement deux fois semaine

Love this stuff, works great with my curly frizzy hair! Helps tame the frizz and no unwanted residue or product feeling left in my hair! Wish the price was a bit better

I just got this Keratin smoothing serum a few weeks ago. I rated it as a good price because it was on sale but I do think I probably would not have purchased it at full price without trying it first. I have super thick coarse and very damaged hair and I already own a lot of serums. I know keratin is good for the hair so that's what made me pick this particular product.

Surprisingly, after the very first application I noticed a real difference in the texture of my hair. It certainly was a lot smoother. I don't really read the back of the bottles regarding how much product to apply - my hair is long and very thick so I always need more product than the average person. It was no different with this serum - I applied a lot, probably 20 pumps in total. I start with about five pumps at a time and then add more as needed, but not everyone will need to use this much. So if you have fine / thin hair I would recommend starting with the recommended amount because I found this serum to be heavier than most - which is excellent for my hair type but not for those with short, thin or fine hair.
I use this in several ways: I apply a LOT in shower left on for about 20 mins while I tend to other tasks for more of a deep, penetrating treatment, after the shower in wet hair after squeezing out excess water and also on dry hair to calm extra flyaways. So for me this has multiple uses and is well worth repurchasing. Of course I would prefer sale price (who doesn't? ) but now that I've seen how well it works for my hair type I wouldn't mind paying full price because it gives me good results.
The scent isn't overpowering but I tend to dislike Tresseme scents. They're too shampoo-y smelling for me. I prefer natural fruity smells or coconut, which is my fave hair product scent.
Overall, this is an excellent smoothing serum for thick / coarse hair types, which is hard to find. A lot of serums are very, very light for those with thin / fine to normal hair.
I would definitely recommend this serum to women with my hair type.
I have used this several times a week since I bought it and surprisingly there's still a good amount left in the bottle. It is larger than most serum bottles so I guess that's an extra value added benefit. I can tell my hair is softer for sure, even the very damaged ends. It's not a miracle worker though, so although my ends are softer they are definitely not repaired. I am in need of a trim so I will definitely re-evaluate after my hair is trimmed.